tag:blogger.com,1999:blog-17830333.post6673396296733915351..comments2024-01-04T07:09:46.213-05:00Comments on meeyauw: Puzzling Week Returns: Coxeter's PippinAndreehttp://www.blogger.com/profile/08159511912645034019noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-17830333.post-1750797019686286162011-04-02T22:21:45.886-04:002011-04-02T22:21:45.886-04:00The solution to Coxeter's Pippin:
New Scienti...The solution to <a href="http://meeyauw.blogspot.com/2011/04/puzzling-week-returns-coxeter-pippin.html" rel="nofollow">Coxeter's Pippin</a>: <br /><a href="http://books.google.com/books?id=rykw9gx81GoC&lpg=PA752&ots=sdTT9s52N6&dq=symmetry%20of%20apple%20core&pg=PA751#v=onepage&q=symmetry%20of%20apple%20core&f=false" rel="nofollow">New Scientist</a>, December 21, 1961: <br /><br />Internally, an apple retains the pentagonal symmetry of the apple blossom, and to a first approximation this core is a void in the shape of a doubly tapering cylinder with a pentagram section; this is surrounded by a hard internal skin, and it contains the pips. Cut the apple equatorially first: this exposes the orientation of the pentagram. Make five radial cuts on each piece, through the points of the pentagram; pips will fall out, and the internal skin can be removed with as little waste as with the outer skin. <a href="http://www.amazon.com/gp/product/0471504580/ref=as_li_ss_tl?ie=UTF8&tag=meeyauw-20&linkCode=as2&camp=1789&creative=390957&creativeASIN=0471504580" rel="nofollow">(With acknowledgments to Professor H. S. M. Coxeter, and his Introduction to Geometry — a book to be recommended!).</a>Andreehttps://www.blogger.com/profile/08159511912645034019noreply@blogger.com